euros ($300.5 million) in back taxes to Luxembourg.

The European Commission in its 2017 decision said the Grand Duchy spared the U.S. online retailer from paying taxes on almost three-quarters of its profits from EU operations by allowing it to channel profits to a holding company tax-free.

Luxembourg also appealed to the Luxembourg-based General Court, contending its treatment of Amazon was legal because it did not give the company a selective advantage.

Amazon has its EU headquarters in Luxembourg and has doubled its number of employees to more than 3,000 people from 1,500 since 2017, making it one of the biggest employers in the country of half a million.